mute_master.h

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/*
    Copyright (C) 2009 Paul Davis

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __ardour_mute_master_h__
#define __ardour_mute_master_h__

#include "evoral/Parameter.hpp"
#include "pbd/signals.h"
#include "pbd/stateful.h"
#include <string>

#include "ardour/session_handle.h"

namespace ARDOUR {

class Session;

class LIBARDOUR_API MuteMaster : public SessionHandleRef, public PBD::Stateful
{
  public:
        enum MutePoint {
                PreFader  = 0x1, 
                PostFader = 0x2, 
                Listen    = 0x4, 
                Main      = 0x8  
        };

        static const MutePoint AllPoints;

        MuteMaster (Session& s, const std::string& name);
        ~MuteMaster() {}

        bool muted_by_self () const { return _muted_by_self && (_mute_point != MutePoint (0)); }
        bool muted_by_self_at (MutePoint mp) const { return _muted_by_self && (_mute_point & mp); }
        bool muted_by_others_at (MutePoint mp) const;

        gain_t mute_gain_at (MutePoint) const;

        void set_muted_by_self (bool yn) { _muted_by_self = yn; }

        void mute_at (MutePoint);
        void unmute_at (MutePoint);

        void set_mute_points (const std::string& mute_point);
        void set_mute_points (MutePoint);
        MutePoint mute_points() const { return _mute_point; }

        void set_soloed (bool);
        void set_solo_ignore (bool yn) { _solo_ignore = yn; }

        PBD::Signal0<void> MutePointChanged;

        XMLNode& get_state();
        int set_state(const XMLNode&, int version);

  private:
        volatile MutePoint _mute_point;
        volatile bool      _muted_by_self;
        volatile bool      _soloed;
        volatile bool      _solo_ignore;
};

} // namespace ARDOUR

#endif /*__ardour_mute_master_h__ */